On 3 Mar, 10:47, MarkVarley - MVP
wrote:
Standing around waiting for a train I noticed thiswww.markvarleyphoto.co.uk/temp/Image051.jpg
Idle curiosity is getting the better of me, anyone tell me what it is?

An AWS magnet, which stops the train if it passes a non-green signal
without the driver pushing a button to acknowledge it:
http://en.wikipedia.org/wiki/Automat...itish_Rail_AWS

To the left of it there may have been a TPWS grids, which do much the
same thing, but are more sophisticated:
http://en.wikipedia.org/wiki/Train_P...Warning_System

U

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